Using mailto in qt webview

Question

• Mailto is working in all browser, but in qtwebview not able to open default mail client

If i'm using mailto link directly in html it's working fine, but adding body and subject in link is not working ex-Send email
Here's the code

 mailpopup(){
             const userAgent = window.navigator.userAgent;
             alert(userAgent);
             if(this.model.firstName == undefined || this.model.firstName == null){
               this.model.firstName  = 'No comments';
               alert(this.model.firstName);
             }
             else{
               this.model.firstName;
               alert(this.model.firstName);
             }
           
             if(this.model.firstName2 == undefined || this.model.firstName2 == null){
               this.model.firstName2  = '[email protected]';
               alert(this.model.firstName2);
             }
             else{
               this.model.firstName2;
               alert(this.model.firstName2);
             }
             var maillen = JSON.parse(sessionStorage.getItem('log Data'));
             if (maillen.length > 1) {
               if (environment.production == false) {
                 var  a
                 if(userAgent.includes('Firefox/')){
                   a = maillen.slice(-7);
                 }
                 else{
                 a = maillen.slice(-2);
                 }
                 
               }
               else {
                 if(userAgent.includes('Firefox/')){
                   a = maillen.slice(-10);
                 }
                 else{
                 a = maillen.slice(-2);
                 }
               }
               var testmail = JSON.stringify(a);
               alert(testmail);
             }
             var bodyText = 'userAgent Details: ' + userAgent + '%0D%0A' + "Device Details: " + localStorage.getItem('devicedetails') + '%0D%0A' + 'User Comments: ' + this.model.firstName + '%0D%0A' +'%0D%0A' + [testmail.replace(/\},/g, "%0D%0A")];
             const text = `mailto:${this.model.firstName2}?&subject=Error
   Logs&body=${bodyText}`
             alert(text);
             var mail = document.createElement("a");
             mail.href = text;
             mail.target = "_self"
             mail.click();
           }